Another starting problem thread but little different
#1
Another starting problem thread but little different
I think my title was too confusing:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/bouncy-idle-flooding-room-fuse-671495/
So here we go with new thread.
Car wouldn't start using starter but will push start very easy. No smoke, no ill effects. Everything works nice and fine. But it won't start using key.
Battery just charged and starter spins faster then ever was. Clutch switch works as I can turn engine over.
It started on Sunday when I wasn't able to start car but then it somehow started after lot's of cranking. Then it was starting fine all Sunday while warm. Monday it didn't start and yesterday we push started it, but after warm up it still wouldn't start using key but starts right away by pushing it.
P.S. I searched archives but it's all either flooded cars or clutch switch or something else that wouldn't even allow push start...
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/bouncy-idle-flooding-room-fuse-671495/
So here we go with new thread.
Car wouldn't start using starter but will push start very easy. No smoke, no ill effects. Everything works nice and fine. But it won't start using key.
Battery just charged and starter spins faster then ever was. Clutch switch works as I can turn engine over.
It started on Sunday when I wasn't able to start car but then it somehow started after lot's of cranking. Then it was starting fine all Sunday while warm. Monday it didn't start and yesterday we push started it, but after warm up it still wouldn't start using key but starts right away by pushing it.
P.S. I searched archives but it's all either flooded cars or clutch switch or something else that wouldn't even allow push start...
Last edited by katit; 07-20-07 at 09:25 AM. Reason: added
#5
I do not have lot's of experience but I try to understand whatever I'm doing, not just throwing parts and see if they stick..
Looks like if it IS a problem indeed, it would be continuity problem in START between B1-IG1 (image attached)
I will check it tonight. Thanks a LOT for this pointer! I will update topic on what I find.
Looks like if it IS a problem indeed, it would be continuity problem in START between B1-IG1 (image attached)
I will check it tonight. Thanks a LOT for this pointer! I will update topic on what I find.
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I do not have lot's of experience but I try to understand whatever I'm doing, not just throwing parts and see if they stick..
Looks like if it IS a problem indeed, it would be continuity problem in START between B1-IG1 (image attached)
I will check it tonight. Thanks a LOT for this pointer! I will update topic on what I find.
Looks like if it IS a problem indeed, it would be continuity problem in START between B1-IG1 (image attached)
I will check it tonight. Thanks a LOT for this pointer! I will update topic on what I find.
you have the diagram.............................but did do it right!
U GOTTA USE THE LOWER "ON " WIRING USING IG2!!!!!
#12
cams pistons valves
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according to your statements only. the problem, whenever u crank the engine it doesn't start. when u push it starts.
the contact inside the key cyl. is not connecting when cranking mode.
so change the key cyl.
the contact inside the key cyl. is not connecting when cranking mode.
so change the key cyl.
#13
Yes, this is how it is. Thats why if switch bad - it mulfunction in START mode. START is a cranking mode or I'm wrong? Not ON as you said in previous post. Thats' why I looked at B1-IG1
B2-ST obviously work because starter spins and motor cranks. From what I understand - this circuit goes through clutch switch and pretty simple.
btw, I took switch apart, cleaned all contacts, re-lubed with dielectric grease. Right now I just want to prove that this is the problem.
B2-ST obviously work because starter spins and motor cranks. From what I understand - this circuit goes through clutch switch and pretty simple.
btw, I took switch apart, cleaned all contacts, re-lubed with dielectric grease. Right now I just want to prove that this is the problem.
Last edited by katit; 07-21-07 at 10:34 AM. Reason: more
#17
I will solder switch to connect IG2 to B2(when I get home tonight), but I still want to understand why.
I can't find a place in FSM that explains that.
IG2-B2 continuity is good in ON mode, I checked. But IG2 is not dotted on diagram in START mode.
Can you explain reasoning on why those (IG2-B2) need to be connected in START mode?
I can't find a place in FSM that explains that.
IG2-B2 continuity is good in ON mode, I checked. But IG2 is not dotted on diagram in START mode.
Can you explain reasoning on why those (IG2-B2) need to be connected in START mode?
#21
That's what I thought. Confusing because on ON you see B2-IG and it also has stop(circle) at ACC which tells me that line through probably doesn't mean contact. Anyways, it didn't work I tried to short them with no luck.
I will do final test by measuring voltage at 1C on ECU. Should be 12V while cranking.
FSM also tells me that this simptoms could indicate TPS(throttle position sensor) which is unlikely because car runs nice when started.
Another possibility CPS (crank sensors) which I will check and not sure if they can allow motor to run when push start. And it also could be brake in wiring from ignition switch to 1C on ECU...
There is no spark and it doesn't look like there is any fuel, plugs look good.
I will do final test by measuring voltage at 1C on ECU. Should be 12V while cranking.
FSM also tells me that this simptoms could indicate TPS(throttle position sensor) which is unlikely because car runs nice when started.
Another possibility CPS (crank sensors) which I will check and not sure if they can allow motor to run when push start. And it also could be brake in wiring from ignition switch to 1C on ECU...
There is no spark and it doesn't look like there is any fuel, plugs look good.
#23
Well. I found issue. It's not ignition, it's crank sensor (NE).
Measured resistance at ECU and this one didn't have continuity. I already took it off and proved it broken. Hopefully after I find good one - issue will be solved.
Talking about ignition - I think I read schema properly.
Measured resistance at ECU and this one didn't have continuity. I already took it off and proved it broken. Hopefully after I find good one - issue will be solved.
Talking about ignition - I think I read schema properly.
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